<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <!-- 表单校验四要素 -->
       <!--
      1.el-form :model 对应的值 表单对应的数据对象 
      2.el-form :rules 对应的 校验规则
      3.el-form-item prop 表示要校验哪个字段
      4.表单元素(el-input、el-checkbox....)  v-model
       -->
      <el-form ref="form" :model="loginForm" :rules="rules">
        <el-form-item
          label="账号"
          prop="username"
        >
          <el-input v-model="loginForm.username" />
        </el-form-item>
        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="loginForm.password" show-password />
        </el-form-item>
        <el-form-item prop="remember">
          <el-checkbox v-model="rememberMe">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="handleLogin">登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { FORM_KEY } from '@/constants/KEY'
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username:'',
        password:''
      },
      rememberMe:true,
      rules:{
        username:[
          {required:true,message:'用户名不可为空',trigger:'blur'}
        ],
        password:[
          {required:true,message:'密码不可为空',trigger:'blur'}
        ]
      }
    }
  },
  methods:{
    handleLogin() {
      this.$refs.form.validate(async(flag) => {
        if (!flag) return
        // const res = await loginAPI(this.loginForm)
        // this.$store.commit('user/setToken')
        // console.log(res);
        await this.$store.dispatch('user/loginAction',this.loginForm)
        // 判断用户是否点击了记住我
        if(this.rememberMe) {
          localStorage.setItem(FORM_KEY,JSON.stringify(this.loginForm))
        } else {
          localStorage.removeItem(FORM_KEY)
        }
        // 实现哪个页面退出，登陆时继续跳转到对应的页面
        if(this.$route.query.redirect) {
          this.$router.push(this.$route.query.redirect)
        }else {
          this.$router.push('/')
        }
      })
    }
  },
  created() {
    const loginData = localStorage.getItem(FORM_KEY)
    // 先判断 有没有存储用户信息
    if(loginData) {
      const {username,password} = JSON.parse(loginData)
      this.loginForm.username = username
      this.loginForm.password = password
    }
  }
}

</script>

<style scoped lang="scss">
  .login_body {
    display: flex;
  }
  .bg {
    width: 60vw;
    height: 100vh;
    background: url('~@/assets/login-bg.svg') no-repeat;
    background-position: right top;
    background-size: cover;
  }
  .box {
    margin: 200px 10% 0;
    flex: 1;
    .title {
      padding-bottom: 76px;
      font-size: 26px;
      font-weight: 500;
      color: #1e2023;
    }
    ::v-deep() {
      .ant-form-item {
        display: flex;
        margin-bottom: 62px;
        flex-direction: column;
      }
      .ant-form-item-label label {
        font-size: 16px;
        color: #8b929d;
      }
      .ant-input,
      .ant-input-password {
        border-radius: 8px;
      }
    }
  }
  .login_btn{
    width: 100%;
  }
</style>
